Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7824028 | Method for selecting water-based ink and wetting solution for ink-jet recording | — | 2010-11-02 |
| 7364613 | Fluorescent water base ink for ink-jet recording | Michiko Aoyama, Masashi Tsuda, Hiromitsu Sago, Mayuko Umemura, Shunichi Higashiyama | 2008-04-29 |
| 7335249 | Water base ink set for ink-jet recording | Kazuma Goto, Narumi Koga, Masaya Fujioka, Shunichi Higashiyama | 2008-02-26 |
| 7285161 | Water base pigment ink for ink-jet recording | Michiko Aoyama, Yoshito Toyoda, Mayuko Okada, Tatsunosuke Hoshi, Masaya Fujioka +1 more | 2007-10-23 |
| 7252708 | Fluorescent water-base ink for ink-jet recording | Michiko Aoyama, Masashi Tsuda, Hiromitsu Sago, Mayuko Umemura, Shunichi Higashiyama | 2007-08-07 |
| 7192476 | Fluorescent water base ink for ink-jet recording | Mayuko Umemura, Masashi Tsuda, Hiromitsu Sago, Michiko Aoyama, Shunichi Higashiyama | 2007-03-20 |
| 7147696 | Fluorescent water base ink for ink-jet recording | Michiko Aoyama, Masashi Tsuda, Hiromitsu Sago, Mayuko Umemura, Shunichi Higashiyama | 2006-12-12 |
| 6966943 | Ink set for ink-jet recording and ink-jet recording method | — | 2005-11-22 |
| 6893491 | Water base ink for ink-jet recording | Yoshito Toyoda, Noriatsu Aoi, Masashi Tsuda | 2005-05-17 |
| 6809331 | X-ray image reader | Toshifumi Yoshida | 2004-10-26 |
| 6783223 | Water base ink for ink-jet recording and ink-jet recording apparatus provided with the same | Mayuko Okada, Narumi Koga, Kazuma Goto, Hiromitsu Sago, Kazuo Kobayashi +6 more | 2004-08-31 |
| 6783222 | Water base pigment ink for ink-jet recording and ink-jet recording method | Ryuji Kato | 2004-08-31 |
| 6709095 | Water base pigment ink for ink-jet recording and recording apparatus | Hiromitsu Sago, Masashi Tsuda | 2004-03-23 |
| 6679598 | Water base pigment ink for ink-jet recording and ink-jet recording apparatus | Ryuji Kato | 2004-01-20 |
| 5938829 | Water based ink and ink-jet recording method | Shunichi Higashiyama, Masaya Fujioka, Takeo Kitahara, Masahito Kato | 1999-08-17 |
| 5885336 | Recording ink, ink cartridge containing the same, and ink-jet recording method based on the use of the same | Takeo Kitahara, Masahito Kato, Masaya Fujioka, Shunichi Higashiyama | 1999-03-23 |
| 5868823 | Water-based magenta ink composition and ink-jet recording process employing the same | Masaya Fujioka, Takeo Kitahara, Masahito Kato, Shunichi Higashiyama | 1999-02-09 |
| 5861056 | Water-based magenta INK composition and ink-jet recording process employing the same | Masaya Fujioka, Takeo Kitahara, Masahito Kato, Shunichi Higashiyama | 1999-01-19 |
| 5853468 | Water-based ink composition and ink-jet recording process employing the same | Masaya Fujioka, Shunichi Higashiyama | 1998-12-29 |
| 5830264 | Water-based recording ink composition, and ink-jet recording process | Masaya Fujioka, Shunichi Higashiyama | 1998-11-03 |
| 5824142 | Ink composition, process for its preparation, and ink-jet recording process | — | 1998-10-20 |
| 5810917 | Water-based recording magenta ink composition and ink-jet recording process | Masaya Fujioka, Takeo Kitahara, Masahito Kato, Shunichi Higashiyama | 1998-09-22 |
| 5795375 | Water color ink for recording and ink-jet recording process | Masaya Fujioka, Takeo Kitahara, Masahito Kato, Shunichi Higashiyama | 1998-08-18 |
| 5785744 | Water-based black recording ink, and ink-jet recording process making use of the same | Masaya Fujioka, Takeo Kitahara, Masahito Kato | 1998-07-28 |
| 5755861 | Ink composition, process for its preparation, and ink-jet recording process | Masaya Fujioka, Hidemasa Sawada, Masahito Kato | 1998-05-26 |